关于我国自然资源的叙述，正确的是（ ）
Look! This is 1 apple tree. I can see many 2. The apples 3red. They are round. How are they? They are 4. Apples, apples, I love 5. An apple a day keeps the doctor away.
战国时期，东方六国之间南北联合，共同抗秦，称为“____”。而秦国则利用六国间的矛盾，远交近攻，各个击破，称为“____”。
